THE BIGGEST DISCLOSURE OF METAL! HOW MUCH DO YOU KNOW? (2)

The metal element with the highest content in the human body

Calcium is the highest metal element in the human body, accounting for approximately 1.4% of the body's mass.

Transition metal with the highest ranking

Scandium: Scandium has an atomic number of only 21 and is the transition metal with the highest ranking.

The most expensive metal

Californium: In 1975, the world provided only about 1 gram of californium, with a price of around 1 billion US dollars per gram.

The most easily applicable superconducting elements

Niobium: When cooled to an ultra-low temperature of 263.9 ℃, it will deteriorate into a superconductor with almost no resistance.

The heaviest metal

Iridium: Iridium weighs 22.65 tons per cubic meter, and its density is about twice that of lead and three times that of iron (second only to iridium's metal osmium, which weighs 22.5 tons per cubic meter).

The metal with the smallest hardness

Sodium: Its Mohs hardness is 0.4 and can be cut with a small knife at room temperature.

The metal with the highest hardness

Chromium: Chromium (Cr) is a silver white metal with extremely hard and brittle texture. The Mohs hardness is 9, second only to diamonds.

The earliest metal used

Copper: According to research, the earliest copper artifacts in China have a history of over 4000 years.

The metal with the largest liquid range

Gallium: Its melting point is 29.78 ℃ and boiling point is 2205 ℃.

The metal that is most prone to generating current under illumination

Cesium: Its main use is to produce various photoelectric tubes.